/Engine/Plugins/Online/OnlineFramework/Source/Lobby/Public/LobbyBeaconClient.h
Ask the server to kick a given player (may not succeed)
void KickPlayer ( const [FUniqueNetIdRepl](API\Runtime\Engine\GameFramework\FUniqueNetIdRepl) & PlayerToKick, const [FText](API\Runtime\Core\Internationalization\FText) & Reason )